SCADA Server or PLC? — TechKnowSurge

About this interactive

A programmable logic controller (PLC) is a key part of many industrial control systems. It sits on the factory floor and delivers the control data to the equipment. It is programmed to carry out a function, then gives the individual devices their instructions, cycle after cycle. A SCADA system sits above the PLCs. It communicates with them, collects their data, and directs their day-to-day tasks, for example by sending a new setpoint or recipe. It is where operators see and supervise the whole process. To sort a card, ask whether the job is direct control of the equipment in front of the controller, or supervising and coordinating many controllers from the center.

What you'll learn

Tell the job of a programmable logic controller (delivering control data to the equipment on the floor, following its program) from the job of the SCADA system (supervising many controllers centrally and directing them)

Aligned to

CompTIA Security+

3.1 Compare and contrast security implications of different architecture models.

Key terms

Programmable Logic Controller: Programmable Logic Controller is an industrial computer used to automate machinery and processes; PLC security is a cornerstone of OT protection as exploitation can cause physical damage.
Supervisory Control and Data Acquisition: Supervisory Control and Data Acquisition is a system architecture used in critical infrastructure to collect sensor data and issue real-time control commands; SCADA security failures can result in physical damage to industrial equipment and facilities.
Industrial Control System: Industrial Control System is a broad category of control systems used in industrial production and critical infrastructure, including SCADA systems and PLCs; ICS security focuses on protecting physical processes from cyber threats with minimal downtime tolerance.

Topics

Interactive Streak Sort

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